Bluetooth transmission method and device

The embodiment of the invention provides a bluetooth transmission method and device, and relates to the field of data transmission. The embodiment of the invention can transmit big data by using a bluetooth broadcast channel so as to improve the utilization efficiency of equipment such as bluetooth Mesh lamps. The method comprises the steps that a data transmitting device acquires data to be transmitted; the data transmitting device divides the data to be transmitted into n pieces of segment data; the data transmitting device generates n data sub-packets according to the n pieces of segment data; the data transmitting device transmits the n data sub-packets in sequence through the bluetooth broadcast channel; a data receiving device receives broadcast signals of the bluetooth broadcast channel and obtains the n data sub-packets from the broadcast signals; and the data receiving device generates the data to be transmitted according to the n data sub-packets. The bluetooth transmission method and device are app